IUSB vs WABF
iShares Trust iShares Core Universal USD Bond ETF against Western Asset Bond ETF: cost, size, returns, what they hold and how much of it is the same.
Overlap by weight
3%
286 shared positions
Fee gap
29 bp
IUSB is cheaper
1-year return gap
1.9 pts
IUSB is ahead
Larger fund
IUSB
$49.3B
Side by side
| IUSB | WABF | |
|---|---|---|
| Fund | iShares Trust iShares Core Universal USD Bond ETF | Western Asset Bond ETF |
| Issuer | iShares | Franklin Templeton |
| Category | Core Bond | Core Bond |
| Expense ratio | 0.06% | 0.35% |
| Assets | $49.3B | $12M |
| Average daily dollar volume | $474M | $107K |
| Listed | Jun 10, 2014 | Sep 19, 2023 |
| FrenzyCap score | 96 | 36 |
| 1-month return | −1.1% | −1.5% |
| 3-month return | −2.2% | −2.9% |
| Year to date | −4.5% | −6.2% |
| 1-year return | −5.6% | −7.5% |
| 30-day volatility | 4.8% | 4.6% |
| Worst drawdown, 1 year | −7.0% | −8.7% |
| Trailing 12-month yield | 4.37% | 5.60% |
| Holdings | 18,285 | 401 |
| Top 10 weight | 3.8% | 17.5% |
| Look-through P/E | — | — |
| Holdings vs fair value | — | — |
| Holdings above 200-day average | — | — |
| Net flow, latest 3 reported months | +$7.2B thru Jul 2026 | $0 thru Jun 2026 |
| 30-day implied volatility | 7.0% | — |
| Holdings as of | as of Oct 20, 2026issuer data | as of Oct 20, 2026issuer data |
Returns are price returns and exclude distributions. Flows are each fund's own latest reported months and may not cover the same period.
Largest shared holdings
3% of IUSB · 51% of WABF| Holding | IUSB | WABF |
|---|---|---|
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.34% | 2.43% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.19% | 0.68% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.17% | 0.76% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.14% | 0.79% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.13% | 0.65% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.12% | 1.57% |
| UMBS 30YR TBA(REG A), due Nov 12, 2026 | 0.10% | 0.72% |
| TREASURY NOTE 4.63%, due Sep 30, 2030 | 0.09% | 1.16% |
| ARGENTINA REPUBLIC OF GOVERNMENT 4.13%, due Jul 9, 2035 | 0.04% | 0.12% |
| GNMA2 30YR TBA(REG C), due Nov 19, 2026 | 0.02% | 2.11% |
| ARGENTINA REPUBLIC OF GOVERNMENT 0.75%, due Jul 9, 2030 | 0.02% | 0.04% |
| ANHEUSER-BUSCH COMPANIES LLC 4.9%, due Feb 1, 2046 | 0.02% | 0.18% |
| T-MOBILE USA INC 3.88%, due Apr 15, 2030 | 0.02% | 0.40% |
| SPACE EXPLORATION TECHNOLOGIES COR 144A, due Jul 15, 2031 | 0.02% | 0.08% |
| META PLATFORMS INC 4.88%, due Nov 15, 2035 | 0.01% | 0.08% |
| CVS HEALTH CORP 5.05%, due Mar 25, 2048 | 0.01% | 0.14% |
| AMAZON.COM INC 4.88%, due Mar 13, 2036 | 0.01% | 0.08% |
| ABBVIE INC 3.2%, due Nov 21, 2029 | 0.01% | 0.08% |
| META PLATFORMS INC 5.63%, due Nov 15, 2055 | 0.01% | 0.07% |
| WELLS FARGO & COMPANY MTN 5.01%, due Apr 4, 2051 | 0.01% | 0.28% |
| JPMORGAN CHASE & CO MTN 5.15%, due Apr 23, 2037 | 0.01% | 0.08% |
| BANK OF AMERICA CORP MTN 4.08%, due Mar 20, 2051 | 0.01% | 0.06% |
| SPACE EXPLORATION TECHNOLOGIES COR 144A, due Jul 15, 2033 | 0.01% | 0.15% |
| AMAZON.COM INC 5.8%, due Mar 13, 2056 | 0.01% | 0.07% |
| QUIKRETE HOLDINGS INC 144A, due Mar 1, 2032 | 0.01% | 0.17% |
Sector mix of the stock holdings
No sector breakdown: these funds hold few classified stocks.
More: full overlap table · IUSB holdings · WABF holdings
Fund data comes from each fund's SEC filings and issuer disclosures and is shown with the date it is as of. SEC portfolio and flow filings become public about 60 days after the period they cover. Nothing here is investment advice; see Terms.